lm35: Initial implementation

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/lm35/CMakeLists.txt

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+set (libname "lm35")
+set (libdescription "upm DFRobot LM35 temperature sensor")
+set (module_src ${libname}.cxx)
+set (module_h ${libname}.h)
+upm_module_init()

src/lm35/javaupm_lm35.i

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+%module javaupm_lm35
+%include "../upm.i"
+
+%{
+    #include "lm35.h"
+%}
+
+%include "lm35.h"

src/lm35/jsupm_lm35.i

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+%module jsupm_lm35
+%include "../upm.i"
+
+%{
+    #include "lm35.h"
+%}
+
+%include "lm35.h"

src/lm35/lm35.cxx

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+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <iostream>
+#include "lm35.h"
+
+using namespace std;
+using namespace upm;
+
+LM35::LM35(int pin, float aref) :
+  m_aio(pin)
+{
+  m_aRes = m_aio.getBit();
+  m_aref = aref;
+}
+
+LM35::~LM35()
+{
+}
+
+float LM35::getTemperature()
+{
+  int val = m_aio.read();
+
+  // convert to mV
+  float temp = (float(val) * (m_aref / float(1 << m_aRes))) * 1000.0;
+
+  // 10mV/degree C
+  return(temp / 10.0);
+}

src/lm35/lm35.h

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+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+
+#include <iostream>
+#include <string>
+#include <mraa/aio.hpp>
+
+namespace upm {
+  /**
+   * @brief DFRobot LM35 Linear Temperature Sensor
+   * @defgroup lm35 libupm-lm35
+   * @ingroup dfrobot analog temp
+   */
+
+  /**
+   * @library lm35
+   * @sensor lm35
+   * @comname DFRobot LM35 Linear Temperature Sensor
+   * @altname LM35
+   * @type temp
+   * @man dfrobot
+   * @web http://www.dfrobot.com/index.php?route=product/product&product_id=76
+   * @con analog
+   *
+   * @brief API for the DFRobot LM35 Linear Temperature Sensor
+   *
+   * This sensor returns an analog voltage proportional to the
+   * temperature of the ambient environment.
+   *
+   * It has a range of 2C to 150C.
+   *
+   * This driver was developed using the DFRobot LM35 Linear
+   * Temperature Sensor
+   *
+   * @snippet lm35.cxx Interesting
+   */
+
+  class LM35 {
+  public:
+
+    /**
+     * LM35 constructor
+     *
+     * @param pin Analog pin to use
+     * @param aref Analog reference voltage; default is 5.0 V
+     */
+    LM35(int pin, float aref=5.0);
+
+    /**
+     * LM35 destructor
+     */
+    ~LM35();
+
+    /**
+     * Returns the temperature in degrees Celcius
+     *
+     * @return The Temperature in degrees Celcius
+     */
+    float getTemperature();
+
+  protected:
+    mraa::Aio m_aio;
+
+  private:
+    float m_aref;
+    // ADC resolution
+    int m_aRes;
+  };
+}
+
+

src/lm35/pyupm_lm35.i

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+%module pyupm_lm35
+%include "../upm.i"
+
+%feature("autodoc", "3");
+
+%include "lm35.h"
+%{
+    #include "lm35.h"
+%}